Feeding mechanism for box-making machines



9 Sheets-Sheet 1 June 19, 1928.

O. W. COWGILL FEEDING MECHANISM FOR BOX MAKING MACHINES Original FiledJan. 19, 1923 In verdor 0r /Z M'/fa'l O. W. COWGILL FEEDING MECHANISMFOR BOX MAKING MACHINES 4 Original Filed Jan. 19, 1923 '9 Sheets-Sheet 2June 19, igzsf l- #11i-TI- Hf- "T J l I I I 'I I I I I I Y 1 I 1 I I I II I J/fr 077 57 @www M June 19, 1928.

o. w. cowGxLl.'

FEEDING MECHANISM FOR BOX MAKING MACHINES 9 Sheets-Sheet 3 OriginalFiled Jan. 19, 1923 Zhi/miur l1( 60m June 19, 1928.

1,673,902 o. w. cowGlLL FEEDING MECHANISM FOR BOX MAKING MACHINESOriginal Filed Jar". 19, 1923 9 Sheets-Sheet 4 o o c June 19, 1928.

' O. W. COWGILL FEEDING MECHANISM FOR BOX MAKING MACHINES Original FiledJan. 19, 1923 9 Sheets-Sheet 5 June 19, 1928.

O. W. COWGILL FEEDING MEGHANISM FOR BOX MAKING MACHINES Original FiledJan. 19, 1925 9 Sheets-Sheet 6 June 19, 1928. 1,673,902

o. w. cowGlLL FEEDING MEQHANISM FOR BOX MAKING MACHINES Original FiledJan. 19, 1923 9 Sheets-Sheet '7 June 19, 1928. 1,673,902

o. w. cowGlLL FEEDING MECHANISM FOR BOX MAKING MACHINES Original FiledJan. 19, 1923 9 Sheets-Sheet 8 June 19, 1928.

O. W. COWGILL FEEDING MECHANL'SM FOR BOX MAKING MACHINES original FiledJan. 19, 1923 9 sheets-sheet 9 &

Patented June 19, 1928.

UNITED STATES PATENT OFFICE.. y

ORPH 12V. COWGILL, OF ST. LOUIS. MISSOURI, ASSIGNOR 'IO ST. LOUIS LABELWORKS, 0F

ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

FEEDING MECHANISM FOR BOXJNIAKING MACHINES.

Original application filed January 19, 1923, Serial No. 613,632. Dividedand this application filed August 10, 1925.

This inventioi'i relates to new and useful improvements in box makingmachines and is a divisional application of an appl1calion on boi;making machine filed by me January 19,1923, Serial No. 613.632, whichhas matured into Patent No. 1,551,189, Aug. 25. 1925.

The objects of the invention are to proride a mcchz-inism which isadapted to receive a stripof material from which a box is to be made andto automatically feed said strip at proper intervals to asuitablemachine or mechanism designed to operate on such a strip. Y

li"urlher objects of the invention are to provide a device adapted toreceive a stack of strips which are then fed singly at proper intervalsonto a reciprocatingmember which feeds a st rip so positionedintermittently to a lilanking and scoring mechanism, or to other means,l

llith these and 'other objects in view,my invention consists in certainnovel features of construction and arrangement of-parts hereinafter morefully described and claimed, and illustrated in the accompanyingdrawings, in which- Figure 1 is a front elevation of the machine.

Figure is a plan View of the forward portion of the machine.

Figure is an end view, partly broken away, of the forward end of the'machine` Figure 4; is a fragmental cross section taken longitudinallythrough the forward end of the machine.

Figure 5 is a detail View showing the front elevation of the trippingrmechanism used for controlling the strip positioning means.

Figure 6 is a detail view of the operating connections for raising thestrip engaging finger of the tripping means.

1i`igurelw is a rear view of the tripping mechanism showing saidmechanism'in inoperative or disabled posit-ion.

Figure Sis asimilar view showing the tripping mechanism in engagementwith the strip-positioning means.

Figure f) illustrates perspective detail views f the tripping mechanism.

Figure 10 is a detail View of the strip engaging linger. i

Figure 11 is a detail view showing the hegel' moving into an operativeposition.

Serial No. 49,417.

liigure 16 is a detail view showing the strip gripping means of thecarriage.

Figure 17 is a perspective detail-View of the gripping means and itsoperating connections.

Figure 18 is a detail View of means utilized for feeding the strip ofmaterial forward Ato the blanking mechanism. i Theinvention'contemplatesa machine in which the strip of material is fed to a die which cutsOutland scores a blank, `which blank is then transferred to a foldingmechanism wherein the blank is folded into the proper shape and afinishing or `binding band is applied to the side walls of the box.Generally speaking, the maehineeonsists of four sections, viz, thematerial supporting and feeding section 10; the strip positioningsection 11; (Fig. 2) the `blank cutting section 12; andthe blank foldingand band applying section 13. i

The material supporting and feeding section 10 comprises frames 111,which support a table 15, the latter sloping rearwardly toward the blankor strip positioning sectionll. Projecting upwardly from` this table isa wall 16 preferably `formed of upwardly extending slats which arespaced from each other andV aresupported on a suitable framework securedto frames 14.

vThe machine* is actuated by an electric motor (not shown) through themedium of a belt 17 which passes over a pulley y18 fixed to shaft 19.This shaftvis journaled in suitable bearings carried vby the lowerportion of frame 121. A shaft 20 is journaled in the forward end offrame 14 and carries a pulley 21 in which is arranged a clutch 22,whereby pulley 21 may be engaged or. disengaged froin shaft 20. A pulley25 is fixed to shaft 19 and passing over this pulley and driving pulley21 is a belt 24. Clutch 22 is controlled by a handle 26 arranged in thefront end `of the machine and a handle 26a projecting rearwardly towardsthe blank n feeding.,r mechanism 11, thus enabling the operator tocontrol the machine from either side. Suitable operating connections 2Tconneet said handles with clutch The shaft Q8 is transverselyv journaledin bearings projecting outwardl)v from the t'orward end frame Lt and hasfixed thereon a large sprocket wheel 2S). Shaft 20 has fixed thereon asmall sprocket wheel Btl. and operating over these wheels and drivingshaft is a sprocket chain 31.

The rear or inner endof shaft Q8 terminates below the blanking mechanism1Q and has fixed thereon a crank arm 32 to which is pivotally connectedthe lower end of an adjustable connecting rod 83. the upper end of whichis pivotallv mounted in the lower end of a casting 3st. A stationary diemember 35 is supported on the forward end of frame let above the castingBft and projectincr up ardly from this casting and passing through saidstationary member are posts 36, the. upper ends of which carryY aymovable die member S7, which is designed to cooperate with tbestationarjvv melnber and is operated from shaft Q8 through theconnections just described.

The strip or'blank positioning section ll consists of a shelf or frame88 which extends outwardlv and rearwardlxv from table 15 and on the samehorizontal plane with the stationaiwY member This shelf consists of ahorizontally disposed plate 3S supported by rails 3S". Movablv mountedin the forward end of this shelf or frame and supported bv 'ails 3S is areciprocating carriage 39. This carriage is operated from shaft Q8through the medium of an arm 40 loosely mounted on said shaft and havinga roller 41 operating in the cam racc of a cam 4Q. which is fixed toshaft Q8. The

upper end of arm A-tO is adjustablv secured to the slotted end of arm t3b v suitable fastening means 43 and imparts a rocking motion to a shafta-lt. This shaft is journaled in suitable bearings projecting inwardlyfrom the forward end frame 1.4. and has fixed thereon an upwardlyvextending arm 45, the upper end of which is pivotally connected to thefree end of a link 46, which latter is carried b v a rod 47. This rod istransverseljT arranged in the forward end of carriage 39 and has itsends fixed in arms 4S. which latter are pivotalljvY mounted on the'innersides of carriage frame L19. Frame t9 has laterally projectingI rollerswhich operate in suitable raceways formed in the inner sides of rails`A38h and downwardlyv presented rollers which hold the carriage in propealignment. Shelf or frame 38 is designed to receive the strip ofmaterial and carriage 39 is arranged to feed it intermittently towardthe blank cutting mechanism 12. j

Where the material is supplied in the form table l5 (Figs. l` 2. lI/Sand li).

of a series-of strips. the strips are stacked on table l5 in parallelwith shell` or frame, 3S. and suitable means is provided tor moving thelowcrmost strip laterally from the stack onto the shelf.

The meansr for positioning the .strips` on the shelf consists of a.series` of bars .itl operating in slots 5l formed transverselyY inltlaeli of these bars` has a shoulder formed thereon which extendsuj'nvardlv beyond the upper surface of table l5 a sufficient distance toengage. during the rearward movement of said bars. the forward edge ofthe loweri'nost strip and push it from under the stack of the remainingstrips onto the plate Sdn. The lower ends of the slats lti terminateabove table l5 a proper distance to provide clearance for the passage ofsingle strips. Bars 5t), which are secured at their outer ends to alongitudinally disposed iron :'32,

are supported by rollers oil which ride in tracks formed in the sides oftransverse members supported on franies lit (Fig. l). These bars areoperated b v means of arms 5l with which the)Y are connected b v linksand` said arms are fixed to a shaft fifi longitudinally mounted in framel-t and below table l5. which shaft is designed to be actuated when thestrip located on shelf 35S reaches a predetermined position thereon inits forward movement toward the blanking mechanism. The stripjiosit'ioning bars 5() and shaft 5ft are .set in operation b v a finger57 carried by an arm 57 which is fixed to a shaft 5S. the latter beingjournaled below the shelf 38. and said finger projects upwardly abovesaid shelf and is adapted to have its extreme end rest on the strip ofmaterial located on said shell'. The opposite end of shaft 5S extendstoward table l5 and carries a dependingr arm The lower end of this armhas a laterally projecting pin (5t) to which is connected the rear endof a horizontally disposed bar (il, the forward end of which projectsoutwardly through the forward end frame l-i. and has mounted thereon aroller (32. Thisl roller is adapted to operate in an open ended slot 63(Fig. G) formed in a wing piece (it which is fixed to and projectsrearwardly from casting 34.

Arranged parallel with bar (il is a rod (i5 having a slotted rear end(35 engaging pin G0. The forward end of this rod carries a roller 6Gwhich normally rides on the edge of a pivotal piece 67 (Figs. 5-9). Thispivotal piece G7 is pivotally mounted on a bolt 68 which projectsrearwardly from the rear wall of casting 34. Pivotallj' mounted on thesame pin or bolt (3S adjacent to the rear wall of said casting is arocking bar G9 which projects below the pivotal picco (ST and carries atits extreme lower end a laterally projecting pin 70. A plate T1 isstationllt) arilymounted on the forward end of frame 14 below andrearwardly of casting and projects upwardly into the path of pin 70.This plate is designed to engage, during the downward or operativemovement of casting 34 and melnbers 67 and 69. pin 70 and lock bar 69 inposition. lVhen bar 69 occupies a disengaged position, pin 70 rides onthe rear edge of plate 71, as shown in Fig ure 7, and when bar 69occupies an actuating position, said pin engages the forward end ofplate 71, as shown in Figure 8.

Projecting laterally from piece 67 is a pin 72 which rests in a notch 74formed in `the edge of bar 69. Piece 67 and bar 69 are provided at theirupper ends with oppositely disposed projections to which are secured theends of a spring 75 which tends to draw said piece and bar togetherVwhereby pin 72 engages notch 74. Another spring 7 6 is connected at oneend to the upper end of bar 69 and at its opposite end to casting 84 sothat the interengaged members 67 and 69 are held under spring tensionagainst roll er 66 and as soon as this roller is retracted from itsposition, said members swing on pivot 68 into the strip positioningengagement.

The engagement is accomplished by means of a notch 77 formed in theforward edge of member 69, which notch, when members 67 and 69 swingforwardly, is moved into a position to engage a pin 78 projectinglaterally from an arm 79. One end ot this arm is pivotally secured toframe 14. as at 80. and its opposite or tree end has a pivotalconnection 81 with one end of a link 82. The opposite end of this linkhas a pivotal connection with the lower end of an arm 84 secured to anddepending from shaft 56 (Fig. 3). Arm 79 and link 82 are angularlydisposed relative to each other to form toggle mechanism and are undernormal conditions inoperative, but when members 67 and 69 are displacedby the withdrawal of roller 66, slot 77 during the downward movement olsaid members and casting 34 engages pin 78 and actuates arm 79 and link82, thereby causing arm 84 to rock so that shaft 56 and the strippositioning arms 54 and bars 59 are actuated.

Finger 57 is held downwardly against the strip of material on plate 88"1by means of a spring 85 which is anchored at one end to frame 14 and atits other end to arm 59. Roller 66 is held in its forward or disabledposition by a spring 86 which is secured at one end to bar 65 and at itsother end to frame 14. This spring, which weaker than spring 85,maintains bar 65 in its extreme forward position so that pin 60 oc`cupies the extreme rear end of slot and when tinger 57 moves downwarfllyand arm 59 rocks rearwardly, bar 61 and rod 65 are actuated. Slottedwing piece 64 carried by the movable casting 34 actuates through bar 6llinger 57 whereby the latter is lifted and moved away from plate 95whenever a strip is being positioned onsaid plate by bars 50 so that thelinger does not interfere with the placing of the strip on said shelf.This finger is also raised when the strip is being fed forward to theblanking machine, so that all danger of the strip being retarded bypressure exerted by said finger is removed. This operation oi? bar 61does not affect bar 65 and roller 66 on account of the slot and pininterengagement ot arm.59 and bar 65.

Roller 66 is not retracted past pivotal member 67 but only a snicientdistance to clear the edge 67, there beingl a portion removed from therear side of said member to forma recess 67b which provides a suiiicientclearance between said roller and said member when the latter occupies adisplaced position. Recess 67b is formed with a cam face 87 upon which,during the downward movement ot' casting 34 and members 67 and 69,roller 66 rides, causing member 67 to be gradually swung rearwardly toits normal position. Upon reaching the upper end of cam 87 roller 66 andbar 65 are allowed to move forwardly under the influence of spring 86 totheir normal positions. The forward movement of bar 65 `is limited by ashoulder formed thereon and engaging frame 14. (Fig. 5.) The restoringmovement of member 67 independently oi member 69 is rendered possible bythe slot-andpin connection 72 and 74, respectively. Member 69 isrestored by spring 75, the tension ot which has been increased by therestoration of member 67 and this home 1nove` ment of member 69 takesplace as soon as pm 70 leaves the upperend of plate 71 and the notchedportion 77 of member 69 is relieved of the pressure created by theoperative engagement of pin 78 and portion 77. Normally, pressureproduced in actuating arm 79 is suttcient to retain member 69 inengagement with pin 78 or' arm 79, and the loekingplate 71 used toinsure the operative connection and prevent accidental disengagement oi'arm 79 andmcmber 69, as, for example, where the machine kis stoppedwhile the member 69 is still in engagement with piny 78 after member 67has been restored. As there would be no `pressure exerted uponmeniber-69 by pin78, said member would be restored by the tensionedspring 75 before the completion ot the operation of the machine. Byutilizing the locking plate 71, the danger ot this is eliminated. Vhenmember 69 moves to its home position, notch 77 is moved out ofengagement with pin 78 of arm 79 thereby disabling the strip positioningmechanism.

Pivotally mounted on and proJecting outwardly and rearwardly trom slats16 are a series of pendants 88 which are designed CII to rest on andhold the strip of material to the plate 39,, A series of plates 89 areSecured to and project. rear 'ardlv 'from slats 16 and bear on top ofeach strip and prevent it from being moved ont of engagement withshouldera all at'ter said `trip has been moved lfrom the stack ofstripa, thus inrlnring' the. strips beinel carried against Stops .()land Slr. Ui'iwardlv preaented'reonw shaped pina 91 are adjustahlvarranged on table l5 tor maintaining in proper position the Stripsplaced on the table.` The first one, olf slats-1li. which is locatedabove the lor- 'ard trame 14., has a `euidelll adjustablv securedthereto and projecting` forw'ardli1 therefrom, and forming' a stop torthe 'forward ends ot' the Strips So that said strips, when they" areStacked on the table 15, can he properl)v aligned with respect tocarriage 3l).

The rear aide frame oil carriage B9 is provided with an upwardlyprojecting portion 921 which torni` a stop and limits the lateralmovement olf the strip when it` is being placed on plate 38%Jt'lter'bars :10 have deposited a Strip on said plate, they areretracted in readineS-S tor another operation, the for 'ard ends olshoulders 50 being rounded or tapered to enable the bars to pasa underthe stacked Strips to their normal positions without diaturliing'saidstrips.

dien a strip is placed in position on plate 3S and carriage B9, itsJiorward end rests 0n a plate 91 which hinged to one ot they side framesol carriage 39 adjacent to stop 9? and presses against the extensionplate 95 on lahel'l" or frame 38. Immediately below strip` 921 andhinged plate 94C is pivotally mounted a strip locking piece 9G, theupper end ot' which is eccentric Fo as to engage the strip and feed itForward during the torward movement of the carriage and adapted to ridetree ot the underside of Said strip when the carriage is movedrearwardly to its normal position. `Wben carriage 39 is moved forward to'feed the previously positioned Strip to the blankiner mechanism, theforward end ot' the ,new strip which is stationary, as it not yetengaged h v the earringe.` drops onto plate 38, or on top ol the rearend of the old strip, and 0n the return or rearward movement ol thecarriage. hinged plate 94 rides over the forward end ot' the new Strip,so that the latter can be engaged by the locking plate 96. A stationaryplate 97 is fixed to one of the side 'trames ol' the carriage 39forwardlyY of hinged plate 911 and has a rearward exten sion 9T whichoverliee the eccentric end ol piece JG and forma a rigid support betweenwhich and the free end o piece 9G the strip is gripped (Figs. 12 and18). This pivotal piece 96 is moved into this strip-engaging position bv a spring 9G while the stop 97h prevents the excessive movement in theoppositie direction. Thun, the istrip is led torward to the blanltintrmechanifan IQ dnrinu; the forward movement olE the carriage, ill) buvthe locking` piece SNS and during the retro- ,.lrznle or rearwardmovement olt the carriage, the strip is held stationary b v a laprilie;prcesod presser l'oot lill (liigz'. :2) pivotallv mounted above theforward ond o'l' the extension plate llo and arrangi'cd :2o as to allowthe 'forward movement ol' the :Strip and hold aid trip -talionar vagainst the fixed exten sion plate lll) while the carriage is beinerreatored to its normal position.

1n order to acruratelv hold the strip while il is; bein;Y 't'cdloiavardlv and particularly the short la.-:t portion thereol. thecxtremey 'lorwardend oi the earrialae if# provided with at rip gripping'elen'1ent:=,)l)pivotallv mounted on lise 'forward ende ol the Sidetrames of the carriage. One nl aaid grippingr elements cooperates withand bram` attainat the underl ide ot' the 'forward end ol' plate 9T andthe other element cooperate,r with the niidcraide o'll a plate l0()which ia mounted on the corresponding- `Forward end o'l' the carriagetrame Wl. 'l'heere grilipingf elemente normallv occupy disenns'inedpoeitiona. ae ehown in Figure lo. and when the carriage is movediorwardlv Said element` are automatieallv rocked on their pivots so thattheir iorward endf-z are brought againfftfheir eorrespomling'cooperatilnl` platea. as shown in lfignre l5.

'lhe movement oi" the elements lll) into the strip vgripping positionsie el'lected ln' liornn in!!` on each element reamvard extensions Sill.which are pivotally connected to a i'iirwardlv preeenled lng* 4S on thecorreai'iomline' arm 4S. and the n'iovemeul' o'l the elmneni` Ell) toengage the strip ia accon'ipliahed immediately heforecarriae'e 3S) ,alarte1 on its Vforward movement` and Said elenienta are moved into adiaengi'aging poaition immediately before the carriage begins itarearward nmvemem. Arms 48, through which earriatfe fill is aetnated hvarm 15. are pivotallv mounted on the Fide trames ol the carriage andhave a Slight rockingr movement relative thereto ero that when arm iaactuated. .Caid arma are rocked before carriage IES) ia actuated. Slightrocking?r movement ol' arms tip' desinned to operate elements, Sli)caueineY them to move into erifgaeiligv or disengaejing poeltion. as thecase manv be. before carriage fin Starts on ita travel. rl`he rockinginovenlent ol arms '18 ie limited by pins -ttl which are, carried b vand project inwardly from the Side trames ot the carriage and ene-ageaper turca iormed in arms? l.

ln the. operation olE the machine. the material from which the boxes aremade is :npv plied to plate 3U either in the shape olE stripe.. whichare Alacked on the tal ile, 1,5 and ,Cinglv positioned on said plateliflf. or in the form of a roll suitably supported and lol) llt)

fed onto said plate. This material is then intermittently fedforward tothe blanking and scoring mechanism 12 by the reciprocating carriage 39.c i

The operation of the feeding mechanism is entirely automatic, a stripbeing moved from under a stack onto a reciprocating,carriage at therequired movement and said carriage then feeds the strip intermittentlyto the cutting or blanking means. The actuation of the strip positionedmeans is controlled by the travel of the preceding strip so that a newstrip' is brought forward only when the'preceding strip reaches apredetermined position. v

I claim:

l. A feeding mechanism for box making machines comprising a shelfadapted to receive a strip of material, a traveling carriage movablymounted on said shelf for feeding said strip forward, means forsupplying strips of material to said shelf, a displaceable member foractuating said supplying means and means controlled by the position ofthe strip on said shelf for moving said displaceable member intooperative or inoperative position. i

2. A feeding mechanism for box machines comprising a stationary shelfadapted to receive a strip of material, a traveling carriage movablymounted on said shelf and adapted to feed said strip forward, means forpositioning strips of material on said Shelf, operative connections forsaid positioning means, and means for normally disabling. said operativeconnection, said means vbeing displac'eable when the strip on said shelfreaches a definite position whereby said operative connection isactuated and operates said strip positioning means. i

3. A feeding mechanism for box machine comprising a shelf adapted toreceive'a strip of material, a traveling carriage mounted in said shelfand movable longitudinally thereof and adapted to feed said stripforward, means movable transversely of said shelf for positioning astrip of material on said shelf, an arm operable to actuate said strippositioning means, a member movable in a vertical plane adjacent to saidarm, said member being pivotally mounted for movement into and out ofengagement with said arm for actuating the latterand means including afinger engageable by said strip for automatically moving said pivotalmember into operative or inoperative relation with said arm.

4. A feeding mechanism for'box making machines comprisinga table forsupporting strips of material, a shelf arranged adjacent to one side ofsaid table, means movably mounted on said table for successivelydischarging said strips onto said shelf, a traveling carriage forengaging the strip on said shelf and feeding it forward, displaceablemeansfor actuating said strip discharging means, and means for normallyholding said displaceable means inoperative and o-perable when the stripon the shelf reaches a predetermined position to bring said displaceablemeans into actuating engagement with said strip dischargingi means.

5. A feeding mechanism of the class described comprising a support, areciprocatcry carriage in said support, means on said carriage forengaging a strip ofmaterial and feeding' it in one direction, a presserfoot for `holding said strip iimnovableduring the retracting movement ofsaid carriage, a rock arm for actuating said carriage and connectionsbetween said arm and 1said carriage and including means movable againsta rigid partl of said carriage for gripping said strip therebetweenduring the forward movement of said carriage and releasa-ble with thereturn movement.

G. A feeding mechanismfor box making machines comprising a support, areciprocatory carriage mounted in said support, a presser foot forholding said `strip of materiai against movement during the ret-urnstroke of said carriage, a pair of grippers pivotally mounted near theforward end of said carriage and adapted to cooperate with over-hangingportions thereof to' grip a strip of material and move it forward withthe carriage, a pair of links mounted in said carriage and operativelyconnected to said grippers, and actuating mechanism for said car` riageand connected to said links for actuating therethrough said grippers,said links having a limited lost motion relation to said V'arriage topermit actuation of said grippers preparatory to movement of saidcarriage.

7. A feedingmechanism of the class described comprising asupport, areciprocatcry carriage mounted in said support, a retaining memberyieldingly carried by said carriage and adapted to lock a strip ofmaterial to said carriage during the travel thereof in one direction, apresser foot vfor holding the strip against movement during the returnstroke of said carriage, mechanism for actuating said carriage, meansfor positioning a strip of material on said carriage, and a movablemember on said carriage for separating the overlapping ends of thestrips during the positioning of the new strip on said carriage. n i

8. A feeding mechanism 'of the class described comprising a table forsupporting a stack of strips ofmaterial, a shelf arranged to one sideof. said table below the horizontal plane thereof and adapted `toreceive one strip at a time, strip positioning means mounted underneathand movable transversely of said table for moving the lowermost striptransversely of said stack onto -said shelf, and mechanism for actuatingsaid strip positioning means in predetermined relation with the positionof the strip on said shelf.

9. A feeding mechanism of the class described comprising a table forsupporting a stack of strips ot material, a shelt| arranged to one sideoi' said table below the horizontal plane thereof and adapted to receiveone strip at a time, strip positioning means mounted below said tableand movable transversely thereof for moving the lowermost strip of saidstack onto said shelf, actuating means for said strip positioningmechanism andmechanism controlled by the strip on said carriage formoving said actuating means into operative or inoperative relation withsaid strip positioning means.

k1t). A Afeeding mechanism of the class described comprising a table torsupporting a stack of strips of material, a shelt arranged to one sideof said table and adapted to receive one strip at a time, strippositioning means disposed underneath said table and movabletransversely ot said table and said shelf for moving the lowermost stripot' said .stack onto said shelf` mechanism for actuating said strippositioning means, a member operable in a vertical plane, a verticallydisposed arm pivotally mounted on said member and movable intoand out otoperative' engagement with said actuating mechanism, connections forpositioningr said arm relative to said mechanism, a finger adapted to beengaged by a strip on said carriage and associated with said connectionsfor maintaining said arm in inoperative position and adapted when freedby said strip to render said arm operative with respect to saidactuating mechanism and cause a new strip to be positioned on saidshelf.

ll. In a feeding mechanism for box making machines, the combination witha strip 'feeding means, of a mechanism operable transversely relativethereto for positioning a new strip onto said feeding means, actuatingmember thereior, said member being displaceable into inoperativeposition, opera-- tive connections tor controlling said displaceablemember and effecting the operative interengagement between saidactuating member and said positioning mechanism, and a member engageableby the strip positioned on said feeding means for actuating saidoperating connection and disabling said actuating member.

1Q. In a Jfeeding mechanism of the class described the combination ot' astationary support comrnising a table for receiving a stack ot strips ofmaterial and a shelf disposed to oneside and below the horizontal planethereof, ot a series of strip engaging bars movable transversely throughslots in said table for displacing the lowermost of said strips andpositioning it on said shelf, actuating means for said bars` a movablemember adapted to engage and operate said actuating me1nber,'said memberbeing displaceable to render said actuating means 1noperat-ive, and amember cooperating with the strip positioned on said shelf tor positioning said displaceable member and rendering said actuating meansoperative or inn operative.

13. In a feeding l'iicchanism ot the class described, the combinationwith a strip positioning mechanism, ot a rock shaft tor ac tuating thesame, and toggle mechanism iior operating said rock shalt, and a devicehavf ing a definite line ot movement and displaceablc to engage saidtoggle mechanism and set in operation said strip positioning mechanism.l l

let. ln a l'eeding mechanism ot the class described, the combinationwith a strip positioning mechanism, ot a rock sha ft for actnating thesame, toggle mechanism i'or op erating said rock shai't, a device havinga delinite line olf movement and displaceahlo to engage said togglemechanism and set in operation said strip positioning` mechanism, and amember disposed in the path oiE move ment ot said device for insuringthe completion of the operative stroke therrmll in pre determinedrelation with said toggle mechanism.

l5. ln a 'feeding mechanism ot the. class described, the combinationwith a strip positioning means, ot' a toggle mechanism tor operating thesame, a` device having a detinite line ot` moven'ient and adapted toengage and operate said toggle mechanism, and a member engaging saiddevice and operable to bring said device into'or out of engagenient withsaid toggle mechanism.

16. A feeding mechanism of the class described con'iprising a table torsupporting a stack oi' strips of material, a shelt arranged to one sideot' said table and adapted to receive one strip at a time, strippositioning means movable transversely of said` table and said shell formoving the lowcrmost strip ot said stack onto said shelf, mechanism foractuating said `strip positioning means, a linger adapted to be engagedby a strip on said carriage for maintaining said actuating mecl'ianisminoperative and adapt ed when released by the movement ot said strip torender said actuating mechanism operative to cause a new strip to bepositioned on said shelf, and means operable in correlation with saidstrip positioning means tor moving said finger ont of the path otmovement of the strip being positioned on said carriage.

17. In a feeding mechanism ot the, class described, the combination witha strip tceding mechanism, ot means for positioning a new strip otmaterial onto said 'feeding mechanism, actuating means `for said strippositioning means. and a linger adapted to bear against the strippositioned on said feeding 'Iii mediana-in, said finger controlling saidactuating mechanism whereby said strip positioning mechanism is renderedinoperative so long as said linger bears against said strip and isrendered operative When said finger is released by said strip. v

I8. A feeding mechanism for box making niachines comprising a stationarysupport adapted to receive a strip of material, a earriage movablymounted in said support and adapted to engage said strip and feed itforward, a member mounted in said support and yieldingly bearing on saidstrip for permitting 'forward movement thereof and hold said stripagainst retrograde movement, a rock shaft, a rock arm on said shaft foractuating said carriage, a longitudinally movable bar tor actuating saidshaft, a roller fixed transversely to one end of said bar, a verticallymovable cam for engaging said roller and imparting longitudinal movementto said bar, and means for operating said cam.

l2). A feeding mechanism iior boX making machines comprising a supportfor receiving a stack of strips ot material, a frame for receivingsingle strips of material, mechanism Yfor depositing single strips olimaterial troni said support onto said frame, a strip iieed memberoperatively arranged ou said iframe i'or feeding the strip positionedthereon in one direction, and an element engageable by the strip on saidiframe for enabling and disabling said depositing mechanism. y

20. In a feeding mechanisn'na strip depositing' mechanism, an actuatingmember adapted to operatively engage said mechanism, means for normallyholding said actuating member disengaged, and an element for displacingsaid means to permit said member to assume operative position When thedeposited strip reaches a predetermined position.

21. In a feeding mechanism, the combination With a strip depositingmechanism, of a pair of pivotal arms having a fixed line of travel, oneof said arms being movable into actuating engagement with depositingmechanism, a displaceable member adapted to engage the other arm formaintaining both oi' said arms in retracted or disengaged position, andan element engageablevby a strip of material controlling saiddisplaceable member.

22. In' a feeding mechanism, the combination with a strip depositingmechanism, of a pair ol" pivotal arms, one of which is movable intoactuating engagement With said depositing mechanism, the other arm beingmovable to one position simultaneously with the irstarm and in thenormal position in advance thereof, and a coiled spring connect-- ingsaid arms and adapted `to be placed under increased tension When saidarms are displaced relative to each other, thereby insuring the returnmovement of said actuating arm.

In testimony whereof I hereunto atiix my signature this 6th day ofAugust, 1925.

oRPH W. ooWGiLL.

